I have been asked to fix a HP compq 6720s
The problem being,on boot up i get "PXE-E61: Media Test Failure, Check Cable" error msg.

I belive after many hours of trawling the 'net that its a boot up problem where the pc is trying to boot from a network.

I have altered the boot up order to make sure that there is no network before optical drive or HDD but still i get the error msg.

I have also purchased a new HDD today to replace maybe the faulty one, but proved wrong on this aswell,plus the self test on the hdd proved ok.

Any help on this i would be greatfull for